{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "620307004",
    "entityType": "User",
    "nonce": "0xa2c9979e99263cf76d4d8424aa18599a174384d92ffebb3c31fb5c0cb66fb7ff",
    "signature": "0x468cb3101e6113e4ceb56fd0bb9e7e7f2d4e227511e1f41174ea207c6e8eb0e6260b16a4cb973a7c3b6955cf7b8692ec43ae8007cc187929a373dfe52eed6ce11c",
    "signer": "0xde6962319B4Be1C506D0095118367A4AbB8Cc126",
    "userId": "458507083"
  }
}