{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0xf4187de8496cf558e8c24b32dc87e4a82cda64dec6d1bf00d35a6356aea8b2bd",
    "signature": "0x2e770a2c35f3fd0109c4e750aed4cc28afe2d1263890d6eb582058ef0e2400f753db1a095bc25c4858c4ccc400287cff8316a3c77e70614eb5566840e281274e1b",
    "signer": "0xd32819732210Ea4B81f5Ee202a2bcb7704aFEaA1",
    "userId": "714016562"
  }
}