{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x718013c521675764b4824691489f76862dc90785fd36939b43e54865e9fc5898",
    "signature": "0x705f2f8e51857889fec22343cf2ef9b7caa3622ff99f41e1d0abb9f3697d59023b48fd2614fc886150c5b9659808d17d783247f61659a6005f4817bebd18a3551b",
    "signer": "0xe3c64b1f5E7e0Da588E291cF14186fA7EFa5f2E2",
    "userId": "995280810"
  }
}