{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7645",
    "entityType": "User",
    "nonce": "0xe22fdf40b9918748d7c0eb6c61a01bcc0fb0b7de85be6696188d90fba5900adf",
    "signature": "0xeec44dcd478c5b11915c65ec28440b8dced9ea4738b386fccc25a0fe07cb262954dbd19d9125aaa8b9743e1b6d93eb5b2e61485f6dc3d9e8d88b5499965083101b",
    "signer": "0x044142FBd4AF7201d53A9BD1d822768a436d6314",
    "userId": "683311144"
  }
}