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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '01cb84a9b8dcdbabce5a8ac4c04d7f21e873725a02999bc8c638ba1659990f43' 
  AND token = 'M+cHHTgswKnO2d09rKdMGpVS5IPZHDMtqvFNR+mwG4c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}