{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "223236",
    "entityType": "User",
    "nonce": "0x596d99ef954353b99cd409d8e2a8970905305c999678f59531ae27d3a066f080",
    "signature": "0x9f229d2d3a3ca869c3ea4d11fb4a9049682905a630b763d66c2a875dfa9951287bf68755709dc54061d5a4a026274014a5daab4c779c44bc02dd1941c4e25c271c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}