{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53500",
    "entityType": "User",
    "nonce": "0x3d8016b42b196d686cee79b3b02ba0beafcac79375cb0a2cb999d5e93e95c320",
    "signature": "0xbbc2ff7f37f743479d84a23eefae0184a736239b96b098c27d3df0c08d92094a595342dc7b0ddcad02788affc2b26abec5f74075c90f6dd73d57c70009406f241c",
    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}