{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "192406",
    "entityType": "User",
    "nonce": "0x16b64b9cba8f8d92918bbba763130e8ef26ebbcd7d5cf2c88095b3487b227276",
    "signature": "0x6053c951fb2a1712e9893084db2cf5868110cc73201f80297c72c1ffc6ca6982315f102ade3eddb9b930974a2def25700a7fb9ed450f296a5de49b18ff7018711c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}