{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341",
    "entityType": "User",
    "nonce": "0xdb3235cedeed106dc238e82f87d160ca6e9559f2ecdfd504940ad927d5735fb0",
    "signature": "0x01af203a014483f1134f5223503127493770b2a405c642e79d6aff52275bec805afe0cfb583d2db4bb9f27e82a99f00c3ea7d0fef98dee12ef7e11ee8b50b66f1c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}