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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4886a890091a1f3213ab50193befb9e26fb6d732576ebd7973a4bc39d443627c' 
  AND token = 'B0EIulIuAKDliZV/syD5cQbVfSmlHrl/q1PlVCbi02k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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