{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123836",
    "entityType": "User",
    "nonce": "0xb0ffb3dd707339ec0e021cf21ab7d9e698b99431006ccccd61a87db63d8a8986",
    "signature": "0x6577c0ff7b88d1824c0859b571efc4d2be5d7239693356ba18051d02b23ff541471bef7077ec78c034a8b4c841d441e2c725961566f577507e72c02ab40121f31b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}