{
  "manageEntity": {
    "action": "Save",
    "entityId": "2086006083",
    "entityType": "Track",
    "nonce": "0x73799ea7bc5773601a4b551902c02be51b2419ebbdf23b1584ff5d2272e19c51",
    "signature": "0x0830c197ba9d20ee1c5062c3381eb18757474418c7023cb2cdf83220ccdc47ef20ee3ec01cc600c2386855c051557004859367eca540c1ce14ef05189b6d7fdb1c",
    "signer": "0x7b52e6AA15Db4Fc3A84AFF2b12e5B8B128eA8610",
    "userId": "808512351"
  }
}