{
  "manageEntity": {
    "action": "Save",
    "entityId": "1264153182",
    "entityType": "Track",
    "nonce": "0x453e7a53d6c3d859c7bdbc9130d6158f216f0119acdc6f67afd98d12e42e50a9",
    "signature": "0x3e2055b7c7a6e32b287808ccdb8d77529839c70736581df4a39209a4ef35ef7264dc75460730d740d36b1e886423e1516c3d95af1b8fdd7c95e73ed479e072231b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}