{
  "manageEntity": {
    "action": "Save",
    "entityId": "1518260724",
    "entityType": "Track",
    "nonce": "1793019083512066961",
    "signature": "0xf0835e98ccd6049f5b22c3301ae5ba22ef087a87a12a9ec4a820de342ee4a8a005246707b3ac8cc3aaa4b868f97605bc95e1597b142125fa4de2b43b2a287bc91c",
    "signer": "0x9B241b1a6A99d662AE67D328e091Fc94faF23fdc",
    "userId": "881446128"
  }
}