{
  "manageEntity": {
    "action": "Save",
    "entityId": "100426496",
    "entityType": "Track",
    "nonce": "0x9b99ef67655554f702c68bf808ea9ffd3aabb388940d0ab9aca4db560d5a4dc4",
    "signature": "0x3c748f3368d735961ebb09af7a0faba0b9bcd6fde0cb576b19994e7da8679cfe45234f4612ad77e860256a40413260283a24ca57fc7b2cab2b50f2c43df5aa9b1b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}