{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "885900244",
    "entityType": "User",
    "nonce": "0x19f1e0ba8ec34374c9fa41ecfc70bfa8cd99fb25322287c80849bbd734b9a449",
    "signature": "0x5f0a1b5e045ef1a0d2af42db9cec2ff3d8f8f12dea6b364bf48a5e6fdd354fc13ef0e5fec97d84e396ad24347aa4d980cdecb5d3867ca4875f9a7bd0108bb6671c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}