{
  "manageEntity": {
    "action": "Save",
    "entityId": "833317577",
    "entityType": "Track",
    "nonce": "0xba3a09244a412d8adfd00685c8072ddf38685fa2adb4af8e0a2acae65992090a",
    "signature": "0x2e65f608a7c21f99142a9973c5d52dba08082c9ebd6f4f3817eafceaff779e49603d05f2af9c2b7f11f4f82280122862dd8bdeda81e4bc086e6bb431a2078b081c",
    "signer": "0xF7628Ea36C0C266E289b7538b033fB949A6C31ff",
    "userId": "386745392"
  }
}