{
  "manageEntity": {
    "action": "Save",
    "entityId": "165876856",
    "entityType": "Track",
    "nonce": "0xbe2b0a7367a6f98d668fd507c457120b43977b03177c61cce7ca034b9e166366",
    "signature": "0xbd0d00a39d8755e4b0049f719856fc4ec9afec61cc498f401fb412cae19bde2b0d01747a2d36f2d2423af8a8766909725d7f0c09290bac6c9430c464ebee705a1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}