{
  "manageEntity": {
    "action": "Save",
    "entityId": "1774850165",
    "entityType": "Track",
    "nonce": "0x2965fe0948494c5a6ae28bcd4a13fc167d5d1e826d5a670b19d00371785107c4",
    "signature": "0x9651757c84bb3557dd3353951ed57b4475c60ccd0aa8d73691a3462d641476c347885b4f26f3bec6b8c2b60bdd254eb441f8ae77e214327f479dbe8dd895e0ec1c",
    "signer": "0x796D60E9fE921C82Ef20f6329e27dD246392f542",
    "userId": "809803"
  }
}