{
  "manageEntity": {
    "action": "Update",
    "entityId": "255716532",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7b854ed5a19397ce857c78f7bd20dbef8dc410327c090a5950e3fd657a922a0a",
    "signature": "0xc0346cafd70ecc4d3e2d0e1063128a9f2820a07c147631f9e8f21f25fa3046351a3e6c38144b476fee384360795bfb92542e70c4d62dc1e8d84611c80d6636b11b",
    "signer": "0x34E779D95e840B52172A1880E43e161C9ad6828E",
    "userId": "255716532"
  }
}