{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41682",
    "entityType": "User",
    "nonce": "0x4716b04632ea7e6288f237138cbfab754630981b5bbc754c392f065179732b68",
    "signature": "0x0e74707a8ec00badf2618cbef2b91d8a720fe2e03dea2225661371b2473b2c7d3c0e9680effe30d5676189e52d641881cd8b75e25b975759148b70cc0c7ec3d11b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}