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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4b65be5445079f20a0287c4f0f18fe0e9d51bee5000e38cd6e2269335725731c' 
  AND token = 'ktqihK7p+1VT6+vi3m7C9XnRaYqdwX7L4HnD0c4JD4I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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