{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54207",
    "entityType": "User",
    "nonce": "0x2ca1b81eceb9501945ec2a4f0c272c0ffd75b969cb627d69b782fd488d440d69",
    "signature": "0xb78f74f305c7ab6fb9f88050637c4f45bff3a83b133a22a94e0cb3775fd63f8234223a27976ed60f3989ee066b39f5f56b4dca70a36f27055ed0154d9c5e4f361b",
    "signer": "0xE6e03002B9C5eE8351ACADA56815831d91339c9a",
    "userId": "625610029"
  }
}