{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27669",
    "entityType": "User",
    "nonce": "0x2e56589e7504b188572f9e74280760248ff2c02152bbd53a678dc84afb373753",
    "signature": "0xec8f02b05ce3cf3281f4eabdadb9b61b430bf609eaa57783b8318c757942b914191e607e34747de8076215d554daa260bf51020a3b3bd75b1ba7b6caa590b4421b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}