{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa235c9f3fa5db1efa9f45b30a4ef219c218de728c2f16a9d9efff9572e957b89",
    "signature": "0x786b79123189db9959562519ff8862d223b3e8ff7cb8a8fc1ab88b388d5cd9e22ee6945fe519c5e83d53f54e9f35b5c4604eac85450aef145bf867ddee44b9fd1b",
    "signer": "0x459E215f828ac5FCb91C3285F9E09E59c3935091",
    "userId": "305867189"
  }
}