Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '907d1b378d596e2c158287f4cb8821404c82f3956578bb41ff8ac55facf69962' 
  AND token = 'B6b12u/bd/KoNs/AsxXsmdrDm455wiK6MxUx/ctkNvs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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