{
  "manageEntity": {
    "action": "Save",
    "entityId": "1006577060",
    "entityType": "Track",
    "nonce": "0x09f8744ff3f0466f0553f2120176bcd111576dd9e4ee4593c018d6eefb83b96d",
    "signature": "0xfc245ba9e784881813a56ae20294e9862787c6a06d9342704ddf3ec03411c98a0e07d7faa402df483df2e07e430cef8189884e6c97738efca3336864ec51539f1b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}