{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54545",
    "entityType": "User",
    "nonce": "0xe2b0cc9e5fef6ae4db76f0d7f52e4aa92047ee34ca8304f355497bdfa4a16896",
    "signature": "0x35fdce28f54f32a81f9368d03e6c4b26042ab34ce3d5703dd4446dfdf67e257d45a996b00fa8ba3d750cf4ce352f23f51a98f2f40854eb895e51011dbc8f350a1b",
    "signer": "0x34d0a9d784667448eB0a813647DAc572A82E5c7D",
    "userId": "885008248"
  }
}