{
  "manageEntity": {
    "action": "Save",
    "entityId": "2006112572",
    "entityType": "Track",
    "nonce": "0xf90f255bc6c4ac60911f05eba3806f0b113ba20b2048369f89d593508b2555ae",
    "signature": "0xa532e7c4db6d6d42ffb370fba2df8d6c6e310e189d5cf4658da7e9eeec01cc6e2ae1b92160a2ac928523d87ffb685ae23fe1dbf3c78088d232ba78824d2e585d1c",
    "signer": "0x92328BFDeD38C9a9De6E253A0CF5CB46A3B28611",
    "userId": "831117417"
  }
}