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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '111fe4eef6d317be45277bf5ae5e0fb0b8d64db86288e8b32662e06fca89a761' 
  AND token = '/Vfa47aVX83cM8giYEe8V2N/aPESyfhOGd+5UAVXIqw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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