{
  "manageEntity": {
    "action": "Update",
    "entityId": "627688539",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x145ff44fff4cced90ef989ea39eda237f00382bcac32a1991f73ff4d5ca1836a",
    "signature": "0x3b8d78e2a033fa6818babd0c5b8691957f2de0ac6b5b6feff3b79e7fc82e89ec42c4c2c52d33a488f61658b3b54052efc8c922693ff6ba2cec8bf3bd81462ddc1c",
    "signer": "0x09c62f6E5c7aBE387159099a93bc138837ED1DA4",
    "userId": "627688539"
  }
}