{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100011",
    "entityType": "User",
    "nonce": "0x6a618b69c4aedab592076a9de4fec04cfd205b16abf29ec99dc98f758cec190d",
    "signature": "0xa1c315b941b07485a98c47c43b033601b0b3116005edaf856c48ee2c2f88e4e1183a28cae51a642275f6c0765fa1846257371cb11430a60df2fb9b8c82b844d31b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}