{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "647391197",
    "entityType": "User",
    "nonce": "0x84bcca3bd0074a484b9fd7b6017a83a35f06e310596038b1992a63c5337c2cf3",
    "signature": "0x9939d388943d71468522d9102062f0e2de19e4c6853756917e11ca01a2f4161448a631a1df8ab999896e3d186600771dd2f6fb6ca6c7f59091ef650e1436ff2c1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}