{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "752372",
    "entityType": "User",
    "nonce": "0x8f5ed2930b433a94bed5a215b1a8068c66eb351e2067102c21cb89d11f62cd1a",
    "signature": "0x1d2000bef8a8afdf5b74444ad82ea8b7a94c4b86bf7ec8bcf967e8503d6a9c562ec4083c753f6f137145683af819fb19994503750bcafa8e0e60cb7b6c8e9b871c",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}