{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "393620456",
    "entityType": "User",
    "nonce": "0xb92d8b4efcd4fd1bc5493657936e885fca898dee3f986ed493d6dfb9f17feab9",
    "signature": "0x7ebfc440415c8ff48daa905f7c87a0c114c89cdbd1e99dd5de10e601ff23d88f154387cd5a99512607ef24fc310458764e938a85447c251aa4e21c39389f9b9b1c",
    "signer": "0xa4110A16957a4A3a93a8eEfA38380549A9724DEE",
    "userId": "59293"
  }
}