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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f980ea50db037b30260c2e3d5686a800263b6e140931e2d0c6cb7c24586533e5' 
  AND token = '04Su8v25z/LmZ7sBd5GA3cTExdX5qH7DaqdgJvvPCMc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}