{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "752371160",
    "entityType": "User",
    "nonce": "0xa41c32dbd53bc602e51a137eeaa502ae6041a6d754b727094152b9c8cd3632c3",
    "signature": "0x3e76834de68bcfad2076c6ad26b4b1a59eb98a472e104a6917c55b93a578cc9f00fa6668641da31c67548e0e94158163df8abd490a75a363e4c90ccabb7889e91b",
    "signer": "0xf955397B294667924e7Bb7F0242060CE42339111",
    "userId": "142071420"
  }
}