{
  "manageEntity": {
    "action": "Save",
    "entityId": "22614816",
    "entityType": "Track",
    "nonce": "0xea03faf2462f51b26665caae8f6a546143c44e74a7c210b0fc87829c86498fdb",
    "signature": "0x4cf84b78284f6516c4207a68a703a30af6b057f914be951879043330dfb349bf2d49ede364d072cb516121edd8e176d5bf65864805d0fb55326724ec52624fb01c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}