{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "172",
    "entityType": "User",
    "nonce": "0x4fb0bfe9de49107980b9fa80dbc057de5efeb3ca5603f2796699231992af6e18",
    "signature": "0xdb820612d98481ca534029383db234e6069dd3c18f86b9c61189b9729f8679df3220f6239147a204ee9d609b7c9b755278ede84e57c0700805b0ee3a14a214c31c",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}