{
  "manageEntity": {
    "action": "Save",
    "entityId": "241270",
    "entityType": "Track",
    "nonce": "0x2c06ec942c554a7bc6551c7ec0abc9b1148a7bd98061b53c7d9b3d24f5fa2584",
    "signature": "0x4c0cdb5d0fe2254eb02c31469d60df951144952387a8af38ee86d3acd717f1316379ccd9a818a92c532ae459ab491088ce9aaa6e90bfa0878aec96db1a5218361b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}