{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "742786650",
    "entityType": "User",
    "nonce": "0x0b3476ab7375b5c45414c179977e8ce13111c577138e2336fc00c82d4b82d949",
    "signature": "0x5da4d98beb87829bbf1242823258af6256d3a803d5edc3e9721051daedd63c5526f6610115fc9fcedd23b5e0cbc413e356a66c1278aca545728666d562af4e711c",
    "signer": "0x6802Fe39C5FA9f99ac1Aa32F164982185A3E70ea",
    "userId": "152482938"
  }
}