{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "210635",
    "entityType": "User",
    "nonce": "0xdb4deae77e1564a5c5a0465513f0c7104d194fae52f6708fc73925bd9748db09",
    "signature": "0x498c26770e74bfa233bd5233feea713f58fa2f3234410928a0438830894b4f345e5b1b3b38f3c5ff810cf64bce80ff9c6917a5c44e30b0304dff726966fe584b1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}