{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1",
    "entityType": "User",
    "nonce": "0x7e08ef7722e9af7078fd4db8b0da803f4ba976d3975161325a1e06c14875f333",
    "signature": "0x2fdd090f4f02b3123288c4df53621ced7fbf3bb3a38c79d42c85c382278c96d70e6da314784f8e70b18852fca2e3405031cd9c75a151db0741dc6861fa72b17c1b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}