{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x93753fecb17cad8448828d6b53bb7f2eba163f891f5f8fb41a45095f97da5556",
    "signature": "0x76cb61f3e9d864c71d28b74864953984a9ebb17a5fbabc23150c5e4d35c0a2bd60c11511e04ca1fce013423a5d421ab066c680fbb3bd84af83c67bcd63e492211c",
    "signer": "0x9b751fABFcb2A9E8e312B547Becca1C8812efc97",
    "userId": "378692055"
  }
}