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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '48085a1779d9fc228978dba61a3ebba93d8183ad696b3f14869cac37423e1c2e' 
  AND token = 'IAk9e9XJOjYFzQYPB9UBg6y+G98t6EXX2d2qQQvNuns=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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