{
  "manageEntity": {
    "action": "Update",
    "entityId": "605939603",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdbdb6039fdb7bb73ba7ca05e106d942816083580ccb7c5ae1b4ab9d350fa2d48",
    "signature": "0xaf51af0e70834c6359625210411c3e9e1badb5ebc15e81de9d690e4aba46f23f1eceadcf0548c36f2cb9354bbf35b86f5660103b4d89365c2e54c55bc7fff3761c",
    "signer": "0x4fCF26571935c240F182d98b6630B5D3CeBC9d7B",
    "userId": "605939603"
  }
}