{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "947140631",
    "entityType": "User",
    "nonce": "0xb17f11085dc000cd0f92eeea7e97854aedd6c38eba41dc20a65fb82e22c47d2b",
    "signature": "0xa80a9772848c4e92409ec3e8e6b140b6ca528b0791aff8a14c1bf3742cbc3eb53144e4c6398fa74e06aa8186dff0f84527587f49e1bac246816942d14d39cd7f1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}