{
  "manageEntity": {
    "action": "Update",
    "entityId": "370763624",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x256229d68444c2015dccdcf6202964afd0f2200fbf4af2a185dc0cf40916c233",
    "signature": "0x0a4534be53c2b6adf3aac6ef1984eb02201b4720436dcce92884e59ebdb67f8262a132d4fcd738dfbfef65f78bfd82acabf62b135304bafaa17cfa5dcfe915981b",
    "signer": "0x5Ccf6C1aeA6F23a887D4a4Ac71f77Fc792762c55",
    "userId": "370763624"
  }
}