{
  "manageEntity": {
    "action": "Save",
    "entityId": "736403525",
    "entityType": "Track",
    "nonce": "0xebc9b3fcadbfad7764b3c196b46855ef2dfc3818dc9b114362f5e91c80a4992a",
    "signature": "0x124d0a2a12675fa028e2b5fa3f6f486410e6b91a41c78e4166c2061753b9286917d6401258796c61fe28debe6764a788229b39e9ea5c894f00671cb1cf37a77a1b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}