{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73414",
    "entityType": "User",
    "nonce": "0xba4872f74cc3b143dd9c0820f0aea5aeda38ca47a80cdedcf75a5e8b0ade03ad",
    "signature": "0xb4e158cc1ea451bf00276a7e4db3327db19f34ee181cd1705fbb96148bd8c829448d1160d3b7304f91ed0a68667c050278a280175f73b127febb1a73edddd7771c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}