{
  "manageEntity": {
    "action": "Update",
    "entityId": "96649040",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0522220d429addc60edfeb020657dbba3e2186f956534f6399ec50ce1134141f",
    "signature": "0xa8b271a471ced1fae46d23ed4effedac4078dfbd435c22828e7d7a091e0270a61e3bf40cf5c00f9714f7fc530688434fc5b0fa82e3010cdf9a6c6c8d3a71b1db1c",
    "signer": "0x54BF9B0EaE7DC0d6695ede587b0f13d57e94848f",
    "userId": "96649040"
  }
}