{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "106468",
    "entityType": "User",
    "nonce": "0x137d77d08f8ecf8a431e757709bf220d8e227ac005501a949c276cfa4a80437f",
    "signature": "0x4ece9ab3668d2613583f5681ec87fc17147f2b27874d2f0b359c5e6f8e0508a05525efb9965fcded947a2f40c9ecd08ffdd42540b16ba4b2b77b63ecc67bda8d1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}