{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7815",
    "entityType": "User",
    "nonce": "0x12832105c5fef37845b2b77a3d1e3e1787162bbe7b53d6d796521a608d38f629",
    "signature": "0x6de2bcc4c8b71813bf9961cc2dadddedff75ffb3d8a82324fa462318b1fa23e67778f268dc6f73b15e8635da55fcc4d083b861b3b4ece8c30d2a2e03b811f3351b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}