{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "147204",
    "entityType": "User",
    "nonce": "0x8558ca75c04045504d64e724d5c56cea3008798e8d567ab0592ebe7dd960d818",
    "signature": "0x22312e54aac7984bb3332b0817fde2517cbd1c4d30aa9b197a3f6b7a3408c5fb421f4fb69bf7f7a3d6aa7e860244d9bc3e04c16839896511288182f1d35096041c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}