{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "302607634",
    "entityType": "User",
    "nonce": "0x1d45ffe43ceefd41c803283d915b3ae5d0d7208c2df1e704d62ed0f8def27f8a",
    "signature": "0xf84e1be95ba3bc4a1cfcabce5221f02665e21114a9d004fb25cd2b4eaf0419d377afbff98c015c583eda6b1bd67da57f95222df3f42771253670c0b51d61dcd21c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}