{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "124266",
    "entityType": "User",
    "nonce": "0x16e44543cf8abef3c5eed4915cb39cad0455e7f944f031491ba362a40bb4653f",
    "signature": "0xb39192fd3e387776e4aa811717d93c44873fbf0c1ab5a53ad99deebb63d081971154e977a35603cc98ca0961f77f91d39887f5a16aa2ffb96ff553776017c14f1c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}