{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xf0ca09d79b19fdc692dbac857cd358d843bb52b58a6509dfa47695a3cda54608",
    "signature": "0xb62599471f1dc4a8abb6c291bb54ec990380cb1fd80e003107108411f0701ebf69a02ad5858d817d7ed5da9cd14c86a270f338c16395dad07e7beaefa0dffa0d1b",
    "signer": "0x7B0C8223b73b88E2ff71FA991cd22e99D81fA154",
    "userId": "394678487"
  }
}