{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x373b5f4687b6437e1bd2fc82fcb64e0ca6e0c191160925eb4ec2e63c4894e31d",
    "signature": "0xb6be9b58120d642074686cc089d9982bd1c415ae2ef655c8c885f661e99a970100e25e039c8191d2bfa2f971e6fcdc693ad87a55ba22e998b688584b947842c81b",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}