{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17689",
    "entityType": "User",
    "nonce": "0x90902d06bef1729a5d52ca242a88f8a63eb528ce8a8037a48bc44454fc22dedf",
    "signature": "0xdf7cbf2e6ab767193b05120febdf96cf1f0c7077666b1a95ba1cf8533aae422d440e2641c999d154b4d6dd47686012cc0cceda6829d5fef85b619d7af3b1c32c1b",
    "signer": "0x292eF57C1FAAc86008ab58D5116e0ba424C9189b",
    "userId": "721084704"
  }
}