{
  "manageEntity": {
    "action": "Save",
    "entityId": "2133796135",
    "entityType": "Track",
    "nonce": "1792290835466978668",
    "signature": "0x3b3c156e9b893ff33c4e42a7172058f549adc13564952aa1b15a16e7984de8c82bb6ed772e35c2b915962ede5e8f15791a3f7cc9e0c3f8b64b55aa2f5cd483ff1b",
    "signer": "0xd30fAF377491796757Ef4C1B0ccA8a407920e663",
    "userId": "451691735"
  }
}