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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'eedfa733a8fe4e7cb09f426e2ea0b5dae8b7057ae51141e17127ade819b33e59' 
  AND token = 'Aewn0YbRZs8PEILA/Etr41el4O5AoiZaKB1jR8Qvjm4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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