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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'be3d54330e733f3604c6c1e2ac92a277da48b3ca8dab9f0c3ba75260d7fe918e' 
  AND token = 'yopu17J11O/wUn7PwTe7EPFB/f/QEpSWhTDG0UPqLCM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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