{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "594112954",
    "entityType": "User",
    "nonce": "0x5f26aaa96e41fe0006ce3a486f1226fd01750541761142d37bcac816a5c32698",
    "signature": "0xbf5cd9198a113adcc6d2344434b61e872c0cd1311fb031531df89babfb508a15044278b2f77fc61b8ac75352cfb50ec87b7512d1fb8f08136718b10537b8afd91b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}