{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0xb70706a4f6fe6b0eb95d0218a7f33c5ae9f640de6170f3d93bbf0cff5ff1de6f",
    "signature": "0xf8f3be7fd3c9ca13165dbe2e081243943f64657b5fcc69a1bcff0d65389e004c0a63254fad0d3229e71a8fdce31730de3895929cf2cb39cbbc5ad2bd3314e0281b",
    "signer": "0x5B01df050c773fa1D1f9A4aA93A9237C8EA2fEEb",
    "userId": "579019814"
  }
}