{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4703348191743b6feb6e72856d1158adc9993f88ce89267f896d2b79b4d73351",
    "signature": "0x8bd036645d1d3fba3df8f7ef8417e4746e466d94742cb7566e602515ddbcf44c35c5f1bec02ecdc0406282dcf545612dbd8816c0359aa5f542b75ec31dc94dd01c",
    "signer": "0x917811A901b0fed8b94608a7D4108FeA8161BBa2",
    "userId": "551419106"
  }
}