{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "856516",
    "entityType": "User",
    "nonce": "0x64e5e3eb35e7ea2edb61a743b0a5faceb81e12d762ef6d551bb8c9d92b8cdc3e",
    "signature": "0x4097eb0acaf425a38ec48ed70b57b843247da69f3a4173fd14e8432e8bd1963e3429ad604f9adf5dab23bb7137a0d9e2a8947cd9693aa600f198d6e1e9a578e21b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}