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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0f94b53fb1fdc9008e9c3c4a1a2a4a22e532bef503c2a72071c7c645ae6eb070' 
  AND token = 'JPtzW5BFNfk2M0Cr9PPTM0WeWevHaC0quhYaUJ1WZUo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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