{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329785",
    "entityType": "User",
    "nonce": "0x96616597e1a3081ba64c495fe74d449a60b11d69ef164825eccd72d6c92959f8",
    "signature": "0xb70a10bb4bf4f4483d7df4186c25807499494c273e3b3f09e067cae56ea3a2f11d564c2af242bca929f8d4e1ed185bcfbef160761647c44d520d914a607a5a021b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}