{
  "manageEntity": {
    "action": "Save",
    "entityId": "70793",
    "entityType": "Track",
    "nonce": "0x7bdc6af09b894a60eb101384eca5b84383e04b83a408edfaf40521103ce0bba7",
    "signature": "0x30cc54dedd42bca96b7a5a2828c022a764eb493f6a3dc8fac8a90b3cf909eea87494b8907e477754bc50c7ec06e76604f09e051728197b138c8ea7372d8bb0731c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}