{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107009",
    "entityType": "User",
    "nonce": "0x3991c014e197344125f3364c1f63d69879a8c01bb3ab2bd570ce9384584ad323",
    "signature": "0x56d9e4b968227ee1ecd32f7368ec207af8c7bc26a0a2443f2e1a5d0a4ced975910d961571901255955bd70f36628e8d28a57c0108fa34805a51463e620dbad331b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}