{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x941ef490f71e89cc2c333644434df343b132b5bfbedda50f98b77875517f33a7",
    "signature": "0xcc4451383009ed2ed54dbd3c66e2c9172ab9c705e975e9389e65dd1e55f09ded0e1ec05e571422b99dd5161580e5b2a5e42d3ad763d8a31dc2aa911f74e18b6b1b",
    "signer": "0xf76Be3e57D30ebb176cA7D31f49157c7f56E6b0D",
    "userId": "204302128"
  }
}