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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3cee8f86c5d9185b7cfd0cdd17860904d52f6cec3d39d7781210708dcaebd107' 
  AND token = 'aLaw0q1ebeFw4w4Bv2ghbSlhHk1Xjf50yOon3EGnf2w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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