{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "366938",
    "entityType": "User",
    "nonce": "0x8de0bea014a601e2ea1fe9590c191fd464b0605a69f10a9b8151c129efb8ccd7",
    "signature": "0x4fdceeb9dad6927dabbe398e6bf043e9860b3e43c25db036042f3768ea91b81b741ab2c0216d5916b0003103dcea06f652aa51ab72be87c41fe8972074f61ffb1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}