Issue with metaplex.nfts().lock

[Nash]

Issue
metaplex.nfts().lock throws following error

Source: Program > TokenMetadataProgram [metaqbxxUerdq28cj1RbAWkYQm3ybzjb6a8bt518x1s]

Caused By: InvalidAuthorityType: Invalid authority type

Program Logs:
| Program metaqbxxUerdq28cj1RbAWkYQm3ybzjb6a8bt518x1s invoke [1]
| Program log: IX: Lock
| Program log: Invalid authority type
| Program metaqbxxUerdq28cj1RbAWkYQm3ybzjb6a8bt518x1s consumed 19276 of 200000 compute units
| Program metaqbxxUerdq28cj1RbAWkYQm3ybzjb6a8bt518x1s failed: custom program error: 0x9e

Regenerate

const addDelegate = async (
  metaplex: Metaplex,
  nft: Nft,
  type: DELEGATE_TYPE,
  delegate: PublicKey,
  owner: PublicKey,
) => {

    return metaplex.nfts().delegate({
    nftOrSft: nft,
    delegate: {
        type: type,
        delegate: delegate,
        owner: owner,
        data: {amount: 1 },
    },
  });
}

const lockNft = async (
  metaplex: Metaplex,
  nft: Nft,
  type: DELEGATE_TYPE,
  delegate: Keypair | Signer,
  owner: PublicKey
) => {

  await metaplex.nfts().lock({
    nftOrSft: nft,
    authority: {
      __kind: 'tokenDelegate',
      type: type,
      delegate: delegate,
      owner: owner,
    }
  });
}
const metaplex = getMetaplex(adminKeypair)
const delegateType = 'UtilityV1'
const nft = await metaplex.nfts().findByMint({ mintAddress: nftPubKey });
await addDelegate(metaplex, nft, delegateType, delegatePubKey, adminPubKey)
await lockNft(metaplex, nft, delegateType, delegateKeyPair, adminPubKey)

UPDATE::

Found the Issue which was on my part. The error was because the pubKey passed in delegate was not same as the one in delegateKeyPair used to lock. It worked fine after fixing it.