{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "191315561",
    "entityType": "User",
    "nonce": "0x40af7eed51e05149eff9928fa65954bc738fe9750b21634d711e1abf025bbbfd",
    "signature": "0xcd3df20dc18e731b814a03f0b706f8462d6295cf701057693cecc0a2258a64351c7c5b0f788245008a5b69e9cd48c56b638a68f3a816d3822babac1964166c561c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}