{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x74a6fa9f64c1138c36053fcfa55ee73554d18a2c8ef528e17eac9560f05b080f",
    "signature": "0x37366b7e7ac0c0b464b69bffb96779a1c3bc84ffb6d3cb2f29419b326f5cdab950529cbc4076365aad10b8c691108977a580e36c2ee30389f03ee76b3f7e8fb21b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}