{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "276429",
    "entityType": "User",
    "nonce": "0x31edf631aab9f4c979b6a190fde87f3293b19b6fe12f733d8e8850e817e1670a",
    "signature": "0x4c564ed93b1d770bfec152ecbd446e4fd685b744e5795f044a0d84e8ec1aa85a564bfa9c406c0afaa452577111827ba2c1f640d876f2aeb9c4d22f98c039051d1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}