{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "296089857",
    "entityType": "User",
    "nonce": "0x26401946a96d9a7ec27945a33df60241de371abba4a91b424fbb51188495a4cd",
    "signature": "0x9f444c2530298bda70a3fe23cd72cff860dea41820646877daf41ba4d93812d40b90c53c034173f8645de36eaeb67da66a01de340d91d004ff3b33ff4b482dd21c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}