{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x98af3d3b1ded1ebe8fa91ed62d9d16add2afc24485b8754bd081157215813b49",
    "signature": "0x2b2ea79954fa70fbd510eda5f7e4831431b5ba2a23ef40628668bee9ba8119d51670bc64eb396d96139c897edf951dc6093a3db83e86b11da531c579f5ca7cfb1c",
    "signer": "0x495cb29b6fC5014C4F1005589a40B4D919Db5E95",
    "userId": "824972439"
  }
}