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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '74f95870a784fc477dd4126f165f171217393b9cef323dc26f28f0b440465d0f' 
  AND token = 'iDdWhv+dkJttRijqUo0gE+rr47iLZ9aYQ4968juDo1c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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