{
  "manageEntity": {
    "action": "Save",
    "entityId": "1005659",
    "entityType": "Track",
    "nonce": "0x35926507414fb9f0bd982d285c0cf3183b61802af79ec7f32c51a15058e52121",
    "signature": "0x31c169eca20c7b564c502c45009401a4e930227b8dd3b01fed5f757e1515d2dc2a521b42a4a383efbcfd4e22ef7b9cb0bce555113eca6e71ef62f7f026fd9daf1b",
    "signer": "0x4Aa8154A33F33394BA8De574d71aC98Ba6A47D5a",
    "userId": "645720561"
  }
}