{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "704274",
    "entityType": "User",
    "nonce": "0xdf2a46809b84dd30bbb417f43de4446d6978cf2522cdaa682707315797f1e5a4",
    "signature": "0xd60eef936abaf739af750678b2d933cca4e8c3b8b31b3521e239f228bddfadb74489b33f8365714d7cbef2ef89fedddd19845cd55cdc3db3e2ced62f662eb4aa1b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}