{
  "manageEntity": {
    "action": "Save",
    "entityId": "1278088271",
    "entityType": "Track",
    "nonce": "0x4f701086d037b7ecf5edc8a1aa75c39bee6dca5976a6415a11beaaeecde1984b",
    "signature": "0x1ba11bc36f6eacecdf25907f1f08d85ea9e8c148aa581df1bc00d2fa019c0eae6d15192d7db773f625c3d96f6e52c12d44905f31d6933d49074571078ebe65ff1b",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}