{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "331306",
    "entityType": "User",
    "nonce": "0x89d1b9483c063d0db826f731546a28ed902df61e825509d9a491e6223254646b",
    "signature": "0xa5a4fa6410da7438902213187e387868116f56552df6710c0578f7d4e39d629654e4a7fa01caa7adc8c3fc0b279a356f4c51011d814f7df9ed26a9fa86d971871b",
    "signer": "0xa185Ff45de6FF68eAa1d7ceC338cba250810134c",
    "userId": "54166466"
  }
}