{
  "manageEntity": {
    "action": "Save",
    "entityId": "2032903906",
    "entityType": "Track",
    "nonce": "0x5dca15460b8d83deea4b4d664592d10c5a83c11fcc2ec0daed4b0f0f3d20c692",
    "signature": "0x63e6ae11b0148cc3bb8530189fc550b98f74bcdf0b9774ecf4e871f7a8474f7608bb611c6a2357801c1805e3e1fe2e01e50f2e011f16358983df6b9b4a0c35071b",
    "signer": "0x2fB1cbBa702009Cf9184d540114B22d8B8FD81d9",
    "userId": "360621402"
  }
}