{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "162770660",
    "entityType": "User",
    "nonce": "0x13009a9e0ccc6264e55ada2d7cbb3bd54dc6cf1aad3a17d3632f7793acecbabf",
    "signature": "0x0a2419f40e9ffb380a2344a20f5ba2151e2965a6bb4d577cd7cf012f571d50cc7720d5ec64dd0ee77471a7369d77fe1834c7d48075acba7ebf3d13e966313c601c",
    "signer": "0x15B9643abE09bd37C52a5BD1dCF938B05b06cBFB",
    "userId": "370091516"
  }
}