{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x3656ec4eb072822ffb09cdfd219aeb86cd655f3b55f6e9c2099dbd8b87909724",
    "signature": "0x803654842ede9f8cc49449a913d955ea54389ed425627580b9e6e631d8cdb9c6625e3cb2fdab15be1915771164fabdded84c6a2b023051004a8e267235df46fc1c",
    "signer": "0x0DA81955e67310452357074d6ee39703c163B4B3",
    "userId": "122499259"
  }
}