{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7477",
    "entityType": "User",
    "nonce": "0x4555467a19240b544eb0729129cbaa7b909744548b49903f6c6b33fd05e46062",
    "signature": "0xf0fd375e791d7fb150be3c112d654f9e3c975bb400e4fd36716ef68625228b806baf549a3cd0cbafe05c0688f8783c6b60d75fc8836c2f625b3a38d8b198c4801b",
    "signer": "0xF2c19977A72e7f63bBbD9063748E52c002b22f6b",
    "userId": "957488166"
  }
}