{
  "manageEntity": {
    "action": "Save",
    "entityId": "1766106022",
    "entityType": "Track",
    "nonce": "0xc2b31484cc413267a9bf60983d27df4440c2ee027571067ce0b55f0a01466abb",
    "signature": "0x3c4f1b80ba4966a8cfe7676493a56a7ea3a3ebfb59f8b8b088c03482c560555d213671474d28936238dd442e60091321166c792ddfebd98650068c27a82aaada1c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}