{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329299",
    "entityType": "User",
    "nonce": "0x28f7c57b63aca583b8448dfa964673954b3fe7f9c2c323d0d1e68073716a81f1",
    "signature": "0x1700a7dba51a9079040b716da9c25db012e2f6b4e630d1e420b62cb81385940d1fe5dea81b6c0b89461b2e05c0132c102108bc4315ec31a94643e360b0eaff901b",
    "signer": "0xEa5541F90A3d444911a8e98Cd834918bC96e711B",
    "userId": "892926837"
  }
}