{
  "manageEntity": {
    "action": "Save",
    "entityId": "1322362290",
    "entityType": "Track",
    "nonce": "0x6c8aca9e5f9394c9a1ddcc6a3e10a2174a5b4fa469e784351dc09387e4fbfa9a",
    "signature": "0x26cd5ed651defbee1e8cd4dd55be80a4a49d7c96ea63d057d9043c74f32061f75767dad1c9d21c67cbede9c4fcba10941d569eb5a20faaf58de025d66bb338511b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}