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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd14166b79167e1ea6a4993f46ef3cf490c048c5c121ed49eff629c9b0b5d0ac8' 
  AND token = 'Ne1UlsdjA0PL86v7Oxucl5erROQvPPl0k314tz60UjM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00257

JSON explain

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