{
  "manageEntity": {
    "action": "Save",
    "entityId": "316970753",
    "entityType": "Track",
    "nonce": "0xaac6ee4a939b0363c27d19b2d0b2d29d6ee2554a8311ba21700897d2e203d23d",
    "signature": "0xe27818da188f68c21d66cf9e157549c77dc4d670f78288c6883c8e63bd0bb1cc248e886e4fcd1d7c98063585c14caad3f83213eb9ef598c526096854340b90e51b",
    "signer": "0x568426a5D555ADe94657d547B2Df4a4dc1f0C014",
    "userId": "71569007"
  }
}