{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54801",
    "entityType": "User",
    "nonce": "0x2b415baab31f9a90374766f1d3fb9838d87417e3f1dea66c38fb0559f499098a",
    "signature": "0x2aee9de5ee09a5aaaff0d609e2006fb62364158bdaef0a5052b50ea3732bd635507442874a99cd8121b8f7335f747ea9eb2a380f7fb4546062e0c62ba241f1541c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}