{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x46fdb014dfc3533c07e5bc69e18f44efe498386bb0cb8c4f4c230eb75546f194",
    "signature": "0x843a770dd2adfe0b8dfcd016ad4565ae235edf139b3d2888e97e5f44b642dd515b9a32642dd84e31263d4d2fc2a39818634fa964011db440c1aabfb0a12260df1c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}