{
  "manageEntity": {
    "action": "Update",
    "entityId": "49379001",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3af69b55e348a595e11adabfc13644e27e0438a8a93e45695b1d24ac13c07d0d",
    "signature": "0xce82b7d96d5ba80c5e089f0a8038eb575807f217a3c432b8b8234d45b47783f15362b06570cd9e6afe9729d90263685e9b59c585955fa44ac61bcbb554f157431c",
    "signer": "0x1a84686556C7a4C2C56C7c5B583f5c953ea7a379",
    "userId": "49379001"
  }
}