{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4891b8c853b769485db3816c0bd1be04ca69ded5a07ff8c2df11935fcb6c74d0",
    "signature": "0x94950c1d3df5a56b92e594dcdce1fe6fb3b03e4ee7c915bda01a268d99b5a711591d6c519079e2c930f61454b68487a8cebd23b880a33dd251c4cd9b3965e6891b",
    "signer": "0x5797b066E3818C2d16862430ec442E3CFf120bBf",
    "userId": "428405094"
  }
}