{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "232849",
    "entityType": "User",
    "nonce": "0xa62af37b13bedbec64a20c3e76f61a1ee580e669b67f1afdf8087a30fbec4862",
    "signature": "0x9a093a2aeef9b52ee70e1d6925e4ee8d3d454100e4f543d0a33c33ef37e5b7d069dd763c12c3c1be5f75f8a246e6e49dbc6cb7d8f70dceb102e46ef418ba75601b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}