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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '6090e0525f18f556c49535b0878337d26d3b433389d43160d438b0ca3bb16a59' 
  AND token = 'qO50LRf1Zz2J1iVxARhqq6X3P+pnmUrnzT/sUxNeb7c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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