{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20835",
    "entityType": "User",
    "nonce": "0x89d915061a7f650b3e8dea574eb32fe9837edade13990fc6a98025c5f4b46170",
    "signature": "0x5930bac3ea505b978058be7d938ef07cae4f751dc67e934136f37b4f5a967dc84160880ecf5dd6d2700e04ec7b228e0462907d45f94bce725f69b2595b15b9061c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}