{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "578268836",
    "entityType": "User",
    "nonce": "0xd7dae0b5e15f91c68fdf24cd17afc85997258cf579bd28916ee3c39204d7f8ba",
    "signature": "0xae3a6786cb7d01d6f646deb30c2aefca43ca3d25d88e147d80ecf996b5227bfe6239cca8408aa047cb645468a44b37a550d762722c46e2b70c9c88e1232aa1261c",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}