{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x7fff040e31f41b70e644bac6cf0130c61d53727a23ab32d37beafdd9f2791e87",
    "signature": "0x3c287f659cf67fc39aaf1d215b6092df87eb673c1c284c967aae5d6045fdc47048ad115bc98dfad03784b79d1fa7bf0eca2beb5d8bbd610a02938f8723faaa6a1b",
    "signer": "0x995Ca8f2d3956487967aCfd7EA849313C448c3a8",
    "userId": "227564"
  }
}