{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x39c6d06b9047292364fd24bd5d955487d1b240b5dc88bde8e65e2b1354bd7811",
    "signature": "0xe3da74371374d61464fcd720ee70f28bc1f4b6c1056f3097a4f468420e82e0476c36403db3fe7a5464dc1e32436599be9e6f80ad5c338b4a06612d532f5930b61c",
    "signer": "0xf76Be3e57D30ebb176cA7D31f49157c7f56E6b0D",
    "userId": "204302128"
  }
}