{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcd2cf8e803f6db5392b9ee426090c31c512e4e07da65b1d970e216278a6f1af0",
    "signature": "0x3c754cefdcaa5c5bb4335aeee222fc8806f7ff568035adf7b6fdf8beedec5d320ec462e72e8070222fc58632c525ac13403442bfad1d5b7a5ee15e38a9c72da61c",
    "signer": "0xDef30Bc85a922d00C0396c9C8b0D233D0654b6f5",
    "userId": "208392258"
  }
}