{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146510",
    "entityType": "User",
    "nonce": "0x983ac98157d4b43c7fad8c0c9c7b8fd18fcd296656f917980eca12e3e375a439",
    "signature": "0x413c5edd36778582917ff111bab79980f860d2f4aa1a96084875070e90fcb4ef2df743465add9c464a8fe08c4c249b9adf258b7258cf9a5c336331e555f560401c",
    "signer": "0xfC577feBb409AA095E990E5446388414cBFEaDbd",
    "userId": "29114334"
  }
}