{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "311257477",
    "entityType": "User",
    "nonce": "0xc09bd3217846b0cb868310af243462cac2815bd66dc0ec35ce5bdf68b4a4b407",
    "signature": "0xa4a61b1bbb5f307f8c7f4a80cdb85ed94abe1730c7a9d603463a236744b1c2cd733154726c0d6572afa9fc7a9ad2d29412bcc1d7e49c4f6a47d6283d156c07051c",
    "signer": "0x98fC2b30E6e70e62dB2b5fAE7b0292DE3D4323Bf",
    "userId": "480962013"
  }
}