{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "307392",
    "entityType": "User",
    "nonce": "0x2f0448e04a3584037fbf53da8ef0ac3d239023acf033e813a5d954efd41dbd62",
    "signature": "0x0d2492d95c72f2c84310420894620ef427b07b42c9578763e15efb87c226f73453cdeb44e884554489af0c7d17fcb38f4ef45f62203bce500d4af7d503ff5b571b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}