{
  "manageEntity": {
    "action": "Save",
    "entityId": "1117651372",
    "entityType": "Track",
    "nonce": "0xeb09ec6f1a86d00183d46e23a2b41139af1fe93f499b1f5323968b8f78e10f89",
    "signature": "0x36899c5afa684d9d2dc5b2b7e83ec61df3b4f2fd0e75747a1945bffd2cd6551c6d9f968cd09f287cfc96f276516817818ea2541d2d061c226ac6643f0e3ced901b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}