{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x69bdc4885cb8d1fc1ea8f46d8c126d111d7b7096f16d1ae37f7ee151c80e3c37",
    "signature": "0x3ef1e355c8e6ba1b3e68671fe46124006a52f455aeeab4aea003f255433cf14153b55cb4a74aede72d05691bf1b4da940da7226a2934137662036a3cd58962051b",
    "signer": "0x0fdbE0966d6f65E3DE225D16D06131c10d4F2b3e",
    "userId": "560630042"
  }
}