{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xcb51706a8110e2afcb9697dc58ce20e497f190371aeed9f3509702e00fdb12d2",
    "signature": "0xa79e7d8cab8a3a495c9eaf58938cd3374cf5f1f41763162d156506f5dfec15db53fae96b3b8fe31cd5f9e6d36db9cd33bac9bbb47daace0bac2b1eed20303ed11b",
    "signer": "0xa85dce385eaA369F6073e0b6e242561d0870425C",
    "userId": "308558165"
  }
}