{
  "manageEntity": {
    "action": "Save",
    "entityId": "2036564831",
    "entityType": "Track",
    "nonce": "0xad703e3e2bbdd916bffb8bd51329ebbff14d2c10bf39c7a6d3e66a737f290c39",
    "signature": "0x2d587ef32c8313cce5e365cbd8eff54748cef411fbfb9d1e9845d4a1a389e2236fe899e3c07d0a682fbaaee9b04160c7643cb1c40d499889fb8db4dd90a805581c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}