{
  "manageEntity": {
    "action": "Save",
    "entityId": "962708384",
    "entityType": "Track",
    "nonce": "0xa63cd064fa8ef9830f233767af25587b82c02fdc60fcfa6decd774f8dc1ceb79",
    "signature": "0x2799e6f25910b6c3017f1bdb213821f7f7a6c50553c2d36d8e10fd2c717ad5b4245b8da39106c58af10691e3edb7a10e54f9386ecfc8cedad548b883b36017ac1c",
    "signer": "0x8a278E79c8E7e655B94c3e6798972A44Daa2c6ad",
    "userId": "24098924"
  }
}