{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0xb0c44c08e885f44c951a4353aac6aa1dfe9dcb1c7521d3bebbf5dd8e37612e90",
    "signature": "0xacd10a686e2f198cf8bbe06739f5822cd28a3352a73209ece760ce8f235069c5204b9a76b206715f93228db55cf3f5b9e480ab84046af51042922953be2416891b",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}