{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x56af3bbaeed721d898f9e99f8f2df4860a4ab5843e5d340c73ce268d755dbab8",
    "signature": "0x4f5ed5bc2e0d6d15d03e8b824e9b1ddf414881a29a460b5164221349ca69f37a24c073461e87f91585ef653699b6e7c6706c85c884d1d02a0d040765fae1251c1c",
    "signer": "0x6F7f8a3fAAb43574034Cc4370b1244A047f98157",
    "userId": "233181177"
  }
}