{
  "manageEntity": {
    "action": "Update",
    "entityId": "154914075",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x78d31a103f03561f430ad1587db5f3eb55bf1abaa522cb26def7bef79905aed3",
    "signature": "0x7e549e5eed56fb99f3b83afd41b5278178f821dbee0b6066584f1b530d7a131a62ebf8f5d746bdf70847a0a1bc60353eb1a8589684efd3c9244db29f12a7321a1c",
    "signer": "0xd70d1ce367a4f5E0df350A923de0D657CA485168",
    "userId": "154914075"
  }
}