{
  "manageEntity": {
    "action": "Save",
    "entityId": "32577",
    "entityType": "Track",
    "nonce": "0x6cd3bb5922bde78a50641cd18a50049980f6895bd3a37a70931c4711bd11b86e",
    "signature": "0xb36f3600112b125d9ebec81bafc112a441623db71307dcd94679b2c1053bacb705a0ad6ee2063441a054ebd0ddff6d0cb4d48d7c3cbcee348bde0d02cfbc32a71b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}