{
  "manageEntity": {
    "action": "Save",
    "entityId": "710046785",
    "entityType": "Track",
    "nonce": "0x0f1bfe05a8c764726e2f5ddc8928b26e59d2e08e5e93f22f62d788d8ef267acb",
    "signature": "0x69754a993a2311f41406f5d951d4b0323931cfeacbc03f1e4df54b09fbc37f3a0c2f38bd05fc20c290cb39a73c5a2635aaf6a24eb7e7f1aa51dc7aa238f60a021c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}