{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb3a8a5b9a64e1f038796f641d65f6bfcce2bfa1285dca8ca9b159277f4858f35",
    "signature": "0xc59091eebf5e7a119d4fd3668b37d2ec9a67f8b208bcac70d40d2696136300230542f61f1474748ded5b1280891a1bfaf7a37d5d9306f9c97f4079f377b1b00a1c",
    "signer": "0xEe161b4a841AAb3460dEa48e7E9d0DF4517b18bF",
    "userId": "603553289"
  }
}