{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5db0b68c056cd97019b41d332b8c027609990b36d423cf957d70fc7636f0429d",
    "signature": "0x070efb786a6863b76f11144ce1a201471eb2ff85d7845b83f2edf890be4d9c4a36bf1aeb4b72f66e3ff6530c5ef765bae6221673dfe1c671bada6c778246a8fb1b",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}