{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7f02ce7a27dff215df54cd8c242d8ef2bb27e1c0e2b9d4cced98f27b0bd0d5b3",
    "signature": "0xcabe191e2e87b123fe281cd5beff76f2b2fe1b904cf1e64017fb2dc5261f0f48440ef3ee9697968a873a9a283eacfc910434a842fa9c84254833d6845bbf379e1b",
    "signer": "0xE41FDb043346Bf00e1B535bBEB854C94ec6cc0a5",
    "userId": "730129542"
  }
}