{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x69e9afdfff5fa359ef4eb51d06fe2ce9927fe6995154a8efd8598e9ffe26cbe9",
    "signature": "0x17805d1ace109bbbfee9e32ab8b081e7de49539b78e5430da6f59646ba2afddf2674ae9a8b81fadcf0bbc193667c384fe9f55ad60a4eb667575f9d4a2668cc061b",
    "signer": "0x65fE0Ba212131b9f06d4B7f9edE5c43BC4527fC6",
    "userId": "915972604"
  }
}