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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9abb94fa33c54ab9e704396f887d0cd931b7791b1b996d1a0ba66845cf4e147e' 
  AND token = 'bc8wFCR7Hqpft7iwzLpOgTl6nsKi1VITJ30obgtKwKE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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